EP 0743440 A2 19961120 - Mode recommendation in a variable displacement engine
Title (en)
Mode recommendation in a variable displacement engine
Title (de)
Betriebsartempfehlung für einen teilweise abschaltbaren Mehrzylindermotor
Title (fr)
Recommendation de mode dans un moteur à nombre de cylindres variable
Publication
Application
Priority
US 44434195 A 19950518
Abstract (en)
The appts. uses signals representative of air charge temperature and barometric pressure, a desired mass air flow evaluator, a maximum mass air flow evaluator, a desired exhaust gas recirculation flow evaluator, a maximum exhaust gas recirculation flow evaluator, and a controller. The controller compares the desired mass air flow to the maximum mass air flow, generating a mass air flow error signal if the desired mass air flow error exceeds a maximum mass air flow error. The controller also compares the desired exhaust gas recirculation flow to the maximum exhaust gas recirculation flow, generating an exhaust gas recirculation flow error signal if the desired exhaust gas recirculation flow exceeds a maximum exhaust gas recirculation flow. The two flow error signals are combined and compared to an acceptable error threshold, and a number of cylinders upon which to operate the variable displacement engine is recommended in response.
IPC 1-7
IPC 8 full level
F02D 45/00 (2006.01); F02D 17/02 (2006.01); F02D 41/00 (2006.01); F02D 41/36 (2006.01)
CPC (source: EP US)
F02D 17/02 (2013.01 - EP US); F02D 41/0087 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
US 5503129 A 19960402; DE 69625541 D1 20030206; DE 69625541 T2 20030515; EP 0743440 A2 19961120; EP 0743440 A3 19990303; EP 0743440 B1 20030102; JP H08312441 A 19961126
DOCDB simple family (application)
US 44434195 A 19950518; DE 69625541 T 19960515; EP 96303430 A 19960515; JP 10305896 A 19960425